Restore your skins radiance in just 7 days with C-Tetra®, the cult-favorite vitamin C serum. Formulated with 7% tetrahexyldecyl ascorbate, a stabilized form of vitamin C, this antioxidant vitamin C serum visibly brightens uneven skin tone and reduces the appearance of fine lines and wrinkles, without irritating sensitive skin. Enriched with vitamin E, it provides potent free radical protection, promoting a younger, healthier-looking complexion. Its water-free formula ensures stability and potency from the first use to the last drop. Ideal for those looking to rejuvenate their skin with a fast-absorbing, highly effective serum.